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- Title
Microstructural control of maraging steel C300.
- Authors
Zhu, F.; Yin, Y. F.; Faulkner, R. G.
- Abstract
The microstructure evolution and precipitation kinetics of maraging steel C300 have been studied in the aging temperature range from 400 to 600°C. The relation between mechanical properties and precipitation hardening response is explained, and modelling is used to optimise the properties. Ultrafine needle shaped Ni3Ti phase is the main strengthening precipitate in maraging C300, and it shows very high resistance to coarsening. A spherically shaped Fe2Mo phase is formed at higher temperatures and in the overaged condition. Inter- and intralath reverted austenite nucleates at higher temperature (∼600°C). Rolling and aging treatment can produce the highest hardness by a combination of work hardening and precipitation strengthening. Microstructural evolution simulation using Monte Carlo modelling has been applied to this alloy, and the modelling has been validated by the experimental results.
- Subjects
MICROSTRUCTURE; MARAGING steel; PRECIPITATION (Chemistry); MECHANICAL behavior of materials; MONTE Carlo method
- Publication
Materials Science & Technology, 2011, Vol 27, Issue 1, p395
- ISSN
0267-0836
- Publication type
Article
- DOI
10.1179/026708309X12506933873503